From this time the Babenbergs lost their influence in Franconia; but in 976 Leopold, a member of the family who was a count in the Donnegau, is described as margrave of the East Mark, a district not more than 60 m. in breadth on the eastern frontier of Bavaria which grew into the duchy of

Charlemagne had established a strong body of troops under a commander who was called a margrave; and for some centuries this city, commanding the Danube, had been deemed one of the strongest defenses of the empire against Mohammedan invasion.